Entry
Name
acyl-lipid (n+3)-(Z)-desaturase (ferredoxin);
acyl-lipid omega6-desaturase (ferredoxin);
oleate desaturase (ambiguous);
linoleate synthase (ambiguous);
oleoyl-CoA desaturase (ambiguous);
oleoylphosphatidylcholine desaturase (ambiguous);
phosphatidylcholine desaturase (ambiguous);
FAD6 (gene name)
Class
Oxidoreductases;
Acting on paired donors, with incorporation or reduction of molecular oxygen;
With oxidation of a pair of donors resulting in the reduction of O2 to two molecules of water
BRITE hierarchy
Sysname
oleoyl-[glycerolipid],ferredoxin:oxygen oxidoreductase (12,13 cis-dehydrogenating)
Reaction(IUBMB)
an oleoyl-[glycerolipid] + 2 reduced ferredoxin [iron-sulfur] cluster + O2 + 2 H+ = a linoleoyl-[glycerolipid] + 2 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O
Substrate
oleoyl-[glycerolipid];
reduced ferredoxin [iron-sulfur] cluster [CPD:
C00138 ];
O2 [CPD:
C00007 ];
H+ [CPD:
C00080 ]
Product
linoleoyl-[glycerolipid] [CPD:
C21529 ];
oxidized ferredoxin [iron-sulfur] cluster [CPD:
C00139 ];
H2O [CPD:
C00001 ]
Comment
This plastidial enzyme is able to insert a cis double bond in monounsaturated fatty acids incorporated into glycerolipids. The enzyme introduces the new bond at a position 3 carbons away from the existing double bond, towards the methyl end of the fatty acid. The native substrates are oleoyl (18:1 Delta9) and (Z)-hexadec-7-enoyl (16:1 Delta7) groups attached to either position of the glycerol backbone in glycerolipids, resulting in the introduction of the second double bond at positions 12 and 10, respectively This prompted the suggestion that this is an omega6 desaturase. However, when acting on palmitoleoyl groups(16:1 Delta9), the enzyme introduces the second double bond at position 12 (omega4), indicating it is an (n+3) desaturase [3]. cf. EC
1.14.19.34 , acyl-lipid (9+3)-(E)-desaturase.
History
EC 1.14.19.23 created 2015
Orthology
K10255 acyl-lipid omega-6 desaturase (Delta-12 desaturase)
Genes
CSAT : 104717096 104727652 104730201
BNA : 106359134 106376162 106424191 106434448
RSZ : 108825849 108831671 108834911
GMX : 100798793(FAD6.2) 547807(FAD6.1)
PSAT : 127097830 127138422
VVO : 131595607 131598129 131627384
LANG : 109327644 109354996
PCIN : 129295355 129309392
QSA : O6P43_002994 O6P43_022187
CMAX : 111465334 111485774
CMOS : 111429776 111436860
CPEP : 111779726 111792327
MESC : 110607377 110617171
SSPL : 121749743 121750630
PEBU : 140825993 140825994
PTAB : 142546195 142547855
CARB : 113692522 113695065
BHW : 143534438 143566311 143603398 143632307
ECAD : 122596092 122597594
MOF : 131158874 131158876 131158877 131158880
PSOM : 113313245 113325422 113332079 113347290
TAES : 100125744 123052234 123188165
MFLO : 136477154 136500566
PVIR : 120677325 120712480
ACAK : 137945998 137950159
SMO : SELMODRAFT_111378 SELMODRAFT_111460 SELMODRAFT_122097 SELMODRAFT_122116 SELMODRAFT_13166 SELMODRAFT_153911
PPP : 112289446 112292746 112293087
CRE : CHLRE_06g288650v5 CHLRE_13g590500v5
MNG : MNEG_14165 MNEG_3236
PPRC : PFLCHA0_c02700(desA)
PPII : QL104_01380 QL104_15900
REH : H16_A1012(h16_A1012)
BVI : Bcep1808_2819 Bcep1808_4012
BSTG : WT74_12815 WT74_14380
TCAR : U0034_19100 U0034_23185
LIM : L103DPR2_00206(desA)
LIH : L63ED372_00157(desA)
BBAG : E1O_11130 E1O_21310
RBS : RHODOSMS8_02108(des)
SAME : SAMCFNEI73_pC0188(des)
RHL : LPU83_3623 LPU83_pLPU83d0685(des)
NHA : Nham_1170 Nham_2541 Nham_4601
RHZ : RHPLAN_52980 RHPLAN_57690
MAQU : Maq22A_c18435(desA)
CAUB : AMEJIAPC_01163(des)
TSV : DSM104635_02735(des)
RUA : D1823_03105 D1823_11775
RUT : FIU92_01705(des1) FIU92_09815(des2)
RCON : K3740_02400 K3740_10790 K3740_20885 K3740_21470
RUY : NOR97_01400 NOR97_09760
PGA : PGA1_c17310 PGA1_c18980
PGL : PGA2_c17110 PGA2_c18060
PHP : PhaeoP97_01734 PhaeoP97_01934
PPIC : PhaeoP14_01629 PhaeoP14_01746
PHQ : D1820_04610 D1820_05085
PHAE : N1037_06840 N1037_10785
OCT : FTO60_06850 FTO60_10460
LMD : METH_07930 METH_09105
LEJ : ETW24_10280 ETW24_10860
LAQU : R2C4_09190 R2C4_09825
LEV : ETW23_09915 ETW23_10730
LCAE : K3721_07365 K3721_08010 K3721_18905
LEIM : K3557_07420 K3557_08040
CEH : CEW89_01900 CEW89_01940
SULI : C1J05_13120 C1J05_14115
SINL : DSM14862_00511(des)
SPSE : SULPSESMR1_02345(des)
RMM : ROSMUCSMR3_00803(des) ROSMUCSMR3_02984(des)
ROK : RAK1035_1883 RAK1035_3675
RID : RIdsm_02229(des_1) RIdsm_05013(des_2)
RPHC : RZ517_04580 RZ517_06415 RZ517_08780
RRL : RZS32_001295 RZS32_010605 RZS32_011915
AHT : ANTHELSMS3_03872(des)
TGL : HFZ77_01450 HFZ77_06135
ASCA : QEZ52_09170 QEZ52_12355
RPOH : ABWH90_07790 ABWH90_10745
PZH : CX676_20805 CX676_21940
PLIA : E4191_21320 E4191_22975
RMB : K529_004305 K529_008420
TSCO : R1T40_06925 R1T40_09385
LVS : LOKVESSMR4R_03368(des)
SEDI : EBB79_06385 EBB79_15255
PPSO : QPJ95_00550 QPJ95_13080
PAED : G5B38_04870 G5B38_19825
GCE : KYE46_07445 KYE46_13505
GYJ : AADW23_09890 AADW23_10810
MANH : LA6_002324(des_1) LA6_002462(des_2) LA6_004576(des_3)
LCK : HN018_18665 HN018_20455
HFL : PUV54_05450 PUV54_06910
HFO : ABFZ83_11435 ABFZ83_12690
ACZ : Acaty_c1394 Acaty_c1601
PPOR : JCM14722_24100(des)
MFB : MFUL124B02_30240 MFUL124B02_36860
MYX : QEG98_18740 QEG98_29915
MFAE : VZP55_17495 VZP55_24305
MVH : ACN6A1_09580 ACN6A1_18945
PFLY : VZL07_03695 VZL07_33035
MFU : LILAB_25445 LILAB_34815
MMAS : MYMAC_003436 MYMAC_005263
PALJ : LZC94_29595 LZC94_41360
MRM : A7982_05413 A7982_13471
CALG : SH580_03590 SH580_08015
LUP : ABWK72_12470 ABWK72_26285
OSU : NT6N_22400 NT6N_22430
LKB : LPTSP3_g23720(desA_2)
KOS : KORDIASMS9_02140(des)
BSY : I653_02505 I653_09920
BSX : C663_0487(FAD6) C663_1968(yocE)
BSS : BSUW23_02535(dfaD) BSUW23_10270(des)
BIT : BIS30_00135 BIS30_13065
BLI : BL02106(des) BL02692
BLD : BLi00576(des1) BLi02807(des2)
BLH : BaLi_c06010(des1) BaLi_c29020(des2)
BAY : RBAM_005380 RBAM_036870
BYA : BANAU_0451(des1) BANAU_3870(des3)
BQY : MUS_0493 MUS_4378(des)
BAMP : B938_02465 B938_18905
BAMA : RBAU_0506 RBAU_3814(des)
BAMN : BASU_0497 BASU_3596(des)
BAMB : BAPNAU_0463(desA) BAPNAU_3877(des)
BAMY : V529_04870 V529_39540(des)
BMP : NG74_00509(des_1) NG74_03861(des_2)
BAMC : U471_05040 U471_38460
BAE : BATR1942_00140 BATR1942_08255
BSON : S101395_01720(fad6) S101395_04432
BHT : DIC78_07345 DIC78_21005
BMOJ : HC660_05680(desE) HC660_19850
BTEQ : G4P54_02810 G4P54_11020
BSTR : QI003_10375(desE) QI003_13805(desE)
BIF : N288_04805 N288_13375
BFD : NCTC4823_03211(desA)
BCAB : EFK13_02960 EFK13_10635(desE)
BRY : M0696_02805 M0696_10325(desE)
BACB : OY17_02110 OY17_05290
BACY : QF06_01445 QF06_08705
BACA : FAY30_07900 FAY30_14280
BACJ : CJO35_02940 CJO35_13975
BAWR : D9C22_02770 D9C22_10300
BMEG : BG04_3784 BG04_4087
HNZ : P9989_09020 P9989_20960
BSJ : UP17_20795 UP17_23350
PBUT : DTO10_07235 DTO10_09815
PASA : BAOM_2837 BAOM_4551
PPSR : I6J18_05325 I6J18_16635
PFRI : L8956_21605 L8956_24845
PERI : RE409_23160 RE409_25710
PERS : ACJ9PY_21980 ACJ9PY_25075
PESI : V1500_07595 V1500_14885
NMK : CHR53_08520 CHR53_26385
NCM : QNK12_07785 QNK12_17880
NNA : ACN6MT_17580 ACN6MT_27995
BLEN : NCTC4824_02221(des)
RSJ : V1502_02940 V1502_03355
BBAD : K7T73_08310 K7T73_10055
PPQ : PPSQR21_009170(desA)
PALB : EJC50_18180 EJC50_25370
PROO : MJB10_04365 MJB10_26125
ANEU : PP175_01460 PP175_25535
AFX : JZ786_07725 JZ786_08125
AACO : K1I37_15815 K1I37_16565
ACUR : JZ785_00660 JZ785_13040
ADAU : NZD86_02985 NZD86_12995
AFAS : NZD89_05130 NZD89_09105 NZD89_22755 NZD89_24310
ALIC : GI364_06365 GI364_16895 GI364_20475
SGF : HEP81_00049(desA_1) HEP81_07829(desA_2)
SBAE : DSM104329_02773(des)
SYH : Syncc8109_1775(desA)
SYNW : SynWH8103_01945(desC)
SYNY : BM449_00735 BM449_11890
CMP : Cha6605_3200 Cha6605_4757 Cha6605_6102
CYN : Cyan7425_2878 Cyan7425_2879 Cyan7425_4259
LBO : LBWT_13260 LBWT_4850
LEPB : GFS31_05880 GFS31_43260
SYP : SYNPCC7002_A2756(desA)
SYV : AWQ23_13715 AWQ23_15550
LEP : Lepto7376_0029 Lepto7376_0786
SYNN : NIES970_04960 NIES970_27080(desA)
PIP : FEK30_03435 FEK30_16170
MVZ : myaer102_26250(desA)
CWA : CwatDRAFT_3226 CwatDRAFT_5150
CYP : PCC8801_2805 PCC8801_3498
CYH : Cyan8802_2618 Cyan8802_3295
PAGH : NIES204_04070 NIES204_13690(desA)
PPSU : NO713_01858(des) NO713_04820(desA)
PRUN : PCC7821_01566(desA) PCC7821_03897(des)
MVAG : D0A34_03380 D0A34_05440
ARP : NIES39_A06590(desA) NIES39_A07580
GVI : gll0171 glr2623(desA)
GLJ : GKIL_2247(desA) GKIL_3937
NCW : NIES2107_57380 NIES2107_64960
NCF : ANSO36C_61820(desA_2)
NOST : GJB62_09270 GJB62_32910
ANB : ANA_C20203 ANA_C20444
NSPH : BDGGKGIB_02540(desA_2)
MDP : NIES3275_09780 NIES3275_51830
DOU : BMF77_00180(desA_1) BMF77_00980(des)
DFS : HGD76_14235 HGD76_17200
DOT : EZY12_04635 EZY12_14665
DOZ : HEP80_16980 HEP80_18120
DOC : HEQ26_15150 HEQ26_16130
AFLO : HEQ12_18920 HEQ12_19075
TTQ : NIES37_04670 NIES37_65710
TOI : HG267_01020 HG267_16160
TOZ : HGR01_02620 HGR01_17260
ALAX : NIES50_15170 NIES50_20860
» show all
Taxonomy
Reference
Authors
Schmidt H, Heinz E
Title
Desaturation of oleoyl groups in envelope membranes from spinach chloroplasts.
Journal
Reference
Authors
Schmidt H, Heinz E
Title
Involvement of ferredoxin in desaturation of lipid-bound oleate in chloroplasts.
Journal
Reference
Authors
Hitz WD, Carlson TJ, Booth JR Jr, Kinney AJ, Stecca KL, Yadav NS
Title
Cloning of a higher-plant plastid omega-6 fatty acid desaturase cDNA and its expression in a cyanobacterium.
Journal
Sequence
Reference
Authors
Falcone DL, Gibson S, Lemieux B, Somerville C
Title
Identification of a gene that complements an Arabidopsis mutant deficient in chloroplast omega 6 desaturase activity.
Journal
Sequence
Reference
Authors
Schmidt H, Dresselhaus T, Buck F, Heinz E
Title
Purification and PCR-based cDNA cloning of a plastidial n-6 desaturase.
Journal
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